Here we will present methods that are suitable mainly for those users who previously had eight installed on their laptop. Several methods will be described here on how you can reinstall Windows 8 and 8.1 by deleting data or rolling back the system.
Reinstalling Windows 8 from the system
The simplest method of rolling back the OS to its original state assumes that the user there is an option to log in into the system and work with built-in utilities. There are several ways to roll back the OS standard means. The first involves simply a rollback, the second a complete reinstallation with deleting files. In any case, the user will need to get into the charms panel; to do this, just move the mouse cursor behind right side screen, and in the panel that appears, click on parameters.
In the panel that opens, go to changing computer settings.
In the window that appears, open General section. It is on it that recovery points will be available without deleting and full reset.
The first section will allow the user roll back all parameters devices to the standard values that were during installation. At the same time, all files, settings and applications that were installed from the official store are saved. All programs that were installed from other sources will be deleted, a list of them will appear on the desktop after the process is completed, so it will not be difficult to find and install them again. 
The second method, which is related to complete removal of all files and data, is essentially a complete reinstalling windows. After selecting this item, all data, files, and applications will be deleted, so you should take care of saving and rewriting information in advance. 
After the process is completed, the user will receive a new system; all utilities and drivers will have to be downloaded and installed again.
If Windows 8 won't start
If the OS does not want to start on the device, you will have to go a different route. In this case, it is worth using a utility that allows you to return the laptop to factory settings; they are built into most of the latest laptop models. The process may be slightly different for each manufacturer.
Instructions for Toshiba
In order to get into the desired program from this manufacturer, to begin with, you will need turn off laptop. Further it is necessary hold down 0 on the keyboard, after which it can be turned on. You should release zero after the laptop starts beeping. The program will warn the user that all data will be lost. In the following sections, you can configure whether you should completely erase the disks and delete partitions on them, or just roll back all installed software. 
After the process is completed, the user will be presented with a clean system that will need to be configured.
ASUS laptops
First you need to go into the BIOS, to do this you need to press f2 when starting the laptop.
Here you should find an option called Boot Booster and switch it to disabled mode, then save the changes and exit. Now, after starting the laptop you need press F9, after which the download progress screen will appear. Next, the utility will warn the user that all his data will be erased. If he agrees to this, the application will begin its work and reinstall the system, while the laptop will be restarted several times. All data will be lost 
Instructions for Samsung
For Samsung, you should click onf4 when the computer starts, which will help launch the reset utility. 
Already in it you should click on:
- chapter " Recovery" (Restore)
- « Full recovery» (Complete Restore)
- Select from available backups Computer Initial Status(Factory settings)
After this, the application will ask for consent to reboot, you need to confirm, and then the recovery wizard will start and ask you to follow its instructions.
During operation, the application will warn that all data will be deleted from the device, you should also agree with this.
HP and Acer
For hp you need to press when turning on on F11, before starting the desired program - Recovery Manager. In it you should click on “ System Restore"(System Recovery), after which it will offer to save some information, which would not hurt to do. The rest of the process will happen automatically. 
After this the utility will ask you to disable everything external devices, this needs to be done. Next, the program will format the hard drive and reinstall the system. 
Foracer The scheme is a little different. When turned on it is pinchalt and periodically click onf10. Next, the recovery utility should start, in which you will need to enter the password 000000. In it, you should also click on reset settings Factory reset, after which you just have to wait for the process to complete.
Running the utility on Lenovo
On the laptop you should find a button with the name OneKey Rescue and press it, which will immediately launch the desired application. 
In it you need to select “ OneKey Recovery ", and in the next menu item " Restore from original copy" Then read the terms and click next.
Reinstalling the system from a flash drive or disk
In some modern devices The OS key is sewn directly into the computer's BIOS. On the one hand, this is good because during reinstallation the key cannot be lost; it can always be removed and the system activated as it should be. However, it is better not to install other versions of Windows on such devices. After installation you only need activate OS. To do this, it will be enough to install the drivers network card and set up an Internet connection. After this, you can go to the computer properties, and from there proceed to activation. 
Reinstalling an earlier version
To install, the user will need to create and burn a bootable flash drive with the desired OS. After this, you can begin installation. First you should go into the BIOS, this can usually be done if pressdel orf2 when starting the laptop, if it doesn’t work, then you should look at the boot screen to see which buttons you are asked to press. 
After entering the BIOS you should go to chapterboot and select the flash drive with the system as the first device. After that, all you have to do is save the settings, then a reboot will occur and the installation process will begin. During this process you will have to enter your username, account Microsoft, as well as license key and select firewall settings. The computer will restart several times; there is no need to restart the installation each time.
How to install another system modification
To install another system modification on a device with a flashed key, it may take several more additional actions. First you need to remove the key that is built into the system; for this you can use a separate PKeyUI utility. When the user has the key, you will need to create two files named ei.cfg and pid.txt in the source folder on the bootable flash drive.
Contentei.cfg:
EditionID- this is the edition of the system, it can be Core or Professional,
Channel- this is a distribution channel, it can be OEM or Retail,
VL- this is a sign of a building. version, can be 0 or 1.
The above example This is the norm for laptops, basic OEM Windows, not a corporate version. 
Contents of pid.txt:
- Value=XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
It's worth here enter code. After that installation program I should stop swearing and install the distribution.
To do this, you need to go into the BIOS and boot from the installation flash drive. 
Any operating system can be subject to virus attacks, or various problems caused by inept user actions: when installing drivers and utilities, when removing some Windows components, intentionally or accidentally. In some cases, correct the situation in the usual ways, such as disinfecting your computer for viruses or system recovery functions, fails. And you have to resort to methods such as reinstalling Windows 8 on your computer or laptop.
There are several options for reinstalling Windows 8 on a laptop. The first and probably more correct is a clean installation of the system with full formatting, from bootable media. Or, as it is also called, installing Windows via BIOS, although this is not a very correct name.
And the second option is to reinstall Windows 8 using the built-in “Recovery” function. Where is it possible to Restore Windows to its original state, deleting all files and applications. And also save everything user files, but reinstall Windows to the state at the time of the first launch. This option will work if Windows boots, but for some reason you need to reinstall it.
Reinstalling Windows 8 without a boot disk
So let's get started.
- We go to the system parameters menu; to do this, you need to move the mouse cursor to the lower right corner of the monitor so that the toolbar appears. Click on the settings icon. Here we are interested in the point “ Change computer settings».
- Next, switch to the tab “ Update and recovery».
- And the next point is “ Recovery».
- Here we can see several categories - “Recovering a computer while saving all personal files” - (all programs, utilities and applications installed by the user for the entire period of using the computer will be deleted). And the option is to delete all information and return the computer to its original state at the time of installation.
- Select the second item and click the button “ Begin" Why the second one? Because in this way we will perform a full reset and restore the system to its original state.
- Next, a warning will appear that all files and applications will be deleted - confirm.
- Next you need to select the option, completely clean the disk or reinstall Windows, select the first option.
- Click " Continue", then the computer will restart and the process of returning Windows 8 to its original state will begin. This may take about half an hour or a little more.
- At the final stages, as in the usual Windows installation 8, you need to make settings, language and regional settings, security settings, and others.
- Further, the final stages of installation will be accompanied by messages about the installation progress on a background that changes brightness. (The pleasure, let’s say, is not quick, even though the messages say that everything is about to happen soon). Until the desktop loads.
Clean reinstallation of Windows
The more preferable method, of course, is to reinstall Windows 8 on a laptop or computer using installation media. In this case, you can format the system disk and install a completely clean OS. But for this method it is necessary to write Windows image 8 per bootable media. For licensed owners operating system Windows 8 you can use the utility MediaCreationTool, which can be downloaded from the official Microsoft website
You can find out more about how to create it here. And also, here you can read how to do it on a computer or laptop. Try it, experiment, in fact, everything is much simpler than it seems.
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And in cases where it is purchased new computer and if you have an old one, they usually come with home preinstalled Windows version, and it, of course, cannot compare in its functionality with full versions operating system. Therefore, most users are thinking about providing their laptop or PC with a more advanced Windows.
There are also many other reasons when it is necessary to reinstall the system. These include: the appearance of various errors, the occurrence of failures, damage to registry files, etc. This article describes in detail instructions by which, simply by following the indicated sequential steps, anyone, even an inexperienced person, can reinstall Windows 8 on their desktop computer or a laptop, for example, from the popular companies Asus or Acer. First, let's look at the generalized process methodology.
General method
Pere Windows installation 8 is not very complicated, so you don’t need to contact a specialist for this, because the whole process will not take much time and will not be difficult even for a beginner. The following guide will help you complete the procedure yourself.
There are only 2 main reinstallation methods:
- Using Windows tools 8;
- Using boot disk or flash drives.
The first method must be used if you have a pre-installed and functioning OS (albeit with glitches). And the second method is universal and can be applied in any case, but the disadvantage of this method is that when using it, all data from the PC (saved on system disk). If you use method 1, all user files and applications will be saved.
The sequence of actions in both methods 1 and 2 are the same. To reinstall Windows 8 you need to follow these steps:
Procedure for reinstalling the OS for an Acer laptop
The manufacturer of this laptop has taken care of the convenience of users who are faced with the problem of having to reinstall Windows 8. To do this, there is no need to use third-party applications and bootable media OS. For such purposes, there is the “Acer eRecovery Management” application.
The algorithm of actions is as follows:
- If the laptop is turned on, then you need to turn it off and connect the device to the mains using the adapter that comes with the device;
- Next, start the laptop and while the welcome message is displayed on the display, click “F10” several times while holding down the “Alt” button;
- Then run the above utility to reinstall the OS.
It's rare, but sometimes it happens that the program refuses to work. In this case, you need to enable “Disk-to-Disk” through the BIOS. For this purpose, you need to do the following:
Actions in the eRecovery utility
After launching the application, you will need to enter a code consisting of 6 or 8 zeros; “AIM1R8” also sometimes works. After this, a menu will be displayed where you will need to specify one of two methods for installing Windows 8; when using the first, all data from the PC (saved on the system drive) will inevitably be deleted, and if the second method is used, all user files and applications will be saved. It is recommended to choose the more reliable method 1.
In the next window you need to click on “Next”. After this, the process will begin, which will last no longer than half an hour. After waiting for the procedure to complete, click on “Ok”, which will automatically restart the laptop.
Final stage
After waiting for the laptop to fully load, the utility will advise the user to configure the OS, following the program prompts.
To do this, you need to perform the following several steps:
Procedure for reinstalling the OS for an ASUS laptop
If the process needs to be carried out on ASUS laptop, then the following step by step guide will help you do this:
Conclusion
In general, the procedure for reinstalling Windows 8 does not have any significant differences on laptops and PCs from different manufacturers. Device owners only need to follow the instructions of the Recovery application.
There are a lot of reasons that motivate you to reinstall or change the operating system and some of them can be easily solved, while others will require a little tinkering. So, if you just want to install Windows other than the pre-installed version or you don’t have a factory system at all, then there shouldn’t be any problems. It is also not uncommon for users to be unable to install a system of the same version as the pre-installed one, as an error message appears stating that activation is impossible. I’ll say right away that all situations can be solved, so go to the section containing instructions for your case.
First, in any case, you should save important system data to a third-party medium that will not be formatted in order to save the information.
Reinstallation Windows8 from the system
There is a simple way to reinstall Windows 8 on a laptop, but it has one limitation, namely, it is necessary for the system to start. This option is suitable for users who are not forced to reinstall Windows because it won’t load, but for other reasons.
To perform the reinstallation you need:
- Open the right menu “Miracle Panel”;
- Click on the “Options” icon;
- Next you will see the “Change computer settings” button, click on it;
- Now click on “Update and Recovery”;
- In the menu on the left, click “Recovery”;
- The item we need is called “Remove all data and reinstall Windows.”
Then, following the instructions, you can install a clean system without any problems. Almost everything will be done automatically.
For many users, a simple method provided by the laptop manufacturer is suitable, which allows you to restore the system to the state in which it was at the time the computer was released and this does not require starting the system; installation is possible from the BIOS.
Reset the system to factory settings
The easiest way to reinstall Windows 8 on a laptop without problems is to use recovery. Initially, the manufacturer contributes HDD hidden section intended for reinstallation, reset or Windows recovery. Thanks to this, you can easily replace the OS without additional tools.
The main difficulty at this point is the lack of generally accepted standards for the recovery procedure. Because of this problem, each manufacturer has its own hotkeys that allow you to access the desired section. Let's take a quick look at popular brands of laptops:
- Samsung – When booting your laptop, you should press F4;
- Asus - the first thing you need to do in BIOS or UEFI is turn off fast loading. There is an option on the “Boot” page, change the “Boot Booster” option to Disabled. Then at startup press F9;
- HP – hotkey F By pressing it you can get to the recovery menu;
- Acer – you should hold down Alt and constantly press F10 while starting the computer. You will also need to enter a password, standard 000000;
- Toshiba - hold down the number 0, not in the right block of the keyboard.
After completing these steps, automatic recovery will begin or you will be transferred to the appropriate menu. Follow the recovery instructions and you will get a clean pre-installed Windows. Immediately after the first start of the system, the installation of programs that came with the system will automatically begin.
This method is not suitable for those who have already reinstalled Windows, since this hidden partition, which allows you to restore the system, has been deleted. In this case, you will have to either look for the required partition, quite often it is sold by the laptop manufacturer, or simply use the OS distribution.
Reinstalling Windows 8 using installation media
Operating room installation Windows systems 8 is not difficult. All you need is to get a disk or flash drive with the distribution we need. Ideally, of course, just buy it or download it from torrents. For the last option, you will also need to write the loaded system to media yourself. Be careful that Windows does not initially contain viruses; to do this, download from trusted services.
Usually, when downloading a system from the Internet, it is presented in one thing - this is an image; you need to write the unpacked version to the media. To work with this format, the UltraISO utility is used, which is very convenient.
In the case of a flash drive, you will need another program (you can actually use the previous one) that will help make the flash drive installable, called WinSetupFromUSB, or you can use another application.
After creating the installation media, you need to press F9 when the system boots, usually when the Bios window appears. This will bring up a window that allows you to specify the device from which Windows will be installed. In it, select the necessary equipment (drive or flash drive). Next, click on the Windows installation menu, then following the instructions, the system will be installed.
One difficulty may arise, since for a long time Windows key is sewn into UEFI or BIOS, then a conflict arises. Only if you are installing a system of the same version, but with a different configuration. Usually pre-installed Windows 8 Single Language and if you set the maximum to 8, an activation error will occur. Since a key is used that is embedded in the system, which does not fit the version being installed. The solution is to add the EI.cfg and PID.txt files to the Source folder on the installation media. EI.cfg is a file with information about Windows edition, and PID.txt contains the key to the system. Fill the files with the appropriate data and place them in the Source directory.
If you still have questions on the topic “How to reinstall Windows 8 on a laptop?”, You can ask them in the comments
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This article will talk about reinstalling Windows 8, which were purchased bundled with the OS. Previously, the serial key was indicated on the bottom cover of the laptop case.
Key to new version flashed in the BIOS of a specific device.
From this it follows:
- Reinstalling OS of other versions is not possible. That is new system will be the same version as the old one;
- It becomes possible to receive automatic system version updates;
- The operating system activation process occurs online, that is, when reinstalling, a network connection is required.
It turns out that there are two options for reinstalling Windows 8: to a version identical to the pre-installed one, and reinstalling to an OS of a different version, which will be discussed further.
Important:On the hard drive of laptops with a pre-installed OS there is a special hidden partition with system files. It allows you to quickly return the device to the state in which it left the assembly line. If this partition is damaged or deleted, you will have to use the second method.
Reinstalling earlier versions of the OS
If it happens that the laptop does not work correctly and you need to reinstall the operating system, then you will need to buy a disk with it or download the image for free on the official Microsoft website and create an installation flash media.
Important:Maintain version compliance. The new OS version must be identical to the previous one. Otherwise, the reinstallation process will be much more difficult.
Step 1: Adjusting BIOS settings
With the installation media ready, you can begin the installation process.
First you need to slightly adjust the BIOS settings. To open it, you need to turn on the laptop and, before the OS starts loading, press F2.
In it you will need to go to the “Security” section. Line " Secure boot”, which needs to be set to .
There is no need to make any other settings. You just need to make sure that in the line “ Boot mode” (“System configuration” section) has the value .
Step 2. Installing the OS from media
One caveat: if the laptop previously had Windows 7 or another OS, then installing Windows 8 on the laptop will require reformatting file system in GPT.
To do this, in the installation manager (stage “Where do you want to install Windows?”), you need to delete all logical partitions of the disk and install the system in unpartitioned space.
If you complete all the steps correctly, you won't even need to enter your product serial key. The successful completion of the installation is indicated by a message with the OS version in the lower right corner of the screen.
Step 3. OS activation
Now it’s a matter of small things – activation. First of all, you will need to install the network card driver and configure your network connection.
Then you will need the “Computer Properties” window, or rather the link at the bottom of it, “More information about activating Windows.”
In the window that opens, click “Activate”.
After a short wait the result will be:
Actually, this completes the reinstallation process, the system is activated and ready for use.
Reinstalling to another version of Windows 8
When reinstalling Windows 8 of a different modification, there is a possibility of getting the following “surprise”:
Why is this happening? Because the type of preinstalled OS in the key to it is rigidly fixed in the device BIOS.
The first thing the installer does is read the software version and key information that is stored on the installation media.
If they are not specified, then information about the modification and key is read from the BIOS.
The process is given as an example of reinstalling from Windows 8 Single Language to another version, more precisely, Windows 8 Professional 64-bit Rus (OEM).
On the installation media, this data is stored in the EI.cfg files, which contains information about the software version and PID.txt, which contains the key.
Simple adjustments will make the installation process possible. This requires a bootable Windows flash drive 8.
– //EditorialOS, MaybebeCore orProfessional//
- //Distribution method//
The second PID.txt file is even easier to create. The form is as follows:
Value=XXXXX-XXXXX-XXXXX-XXXXX-
Where the X's are the modification key for Windows 8 that will be installed. You just need to save it in “txt” format.
Finished files must be placed on bootable USB flash drive, into the “sources” folder.
To do this, you need to open the BIOS (using the method specified in the previous section) and, in the menu “ Boot option menu” determine the priority of devices to boot.
In this case, “USB HDD” must be moved to the very top line of the list.
After exiting the BIOS and saving the settings, the normal installation process will begin, which can be completed by following the installer's instructions.
Once the installation process is complete, you will need to activate the operating system. The process is no different from that described in the previous section.
It may only require you to enter your product key.
Once activation is complete, the system is completely ready for use.
With the above information, the process of installing and reinstalling Windows 8 will no longer be a hassle.
Installing Windows 8 from a USB flash drive to a computer or laptop
Reinstalling Windows 8 on a laptop: where to start?
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